Home / 861,241.38-1,187,281.23-605,799.78

Finding the Fourth Proportional to 861,241.38, 1,187,281.23 and 605,799.78

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Solution

The fourth proportional to 861,241.38, 1,187,281.23 and 605,799.78 is: 835,137.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,241.38 : 1,187,281.23 = 605,799.78 : x
  2. Step 2: Convert to fraction form
    861,241.38/1,187,281.23 = 605,799.78/x
  3. Step 3: Cross multiply
    861,241.38x = 1,187,281.23 × 605,799.78
  4. Step 4: Simplify right side
    861,241.38x = 719,254,707,932.13
  5. Step 5: Solve for x
    x = 719,254,707,932.13/861,241.38
  6. Step 6: Final answer
    x = 835,137.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.